/*
 * Copyright (c) 2010-2011, okazoh_tk. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  - Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *  - Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *  - Neither the name of the copyright holder nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef ALKES_DIRECTX_STATE_H_INCLUDED_
#define ALKES_DIRECTX_STATE_H_INCLUDED_

#include "alkes/directx9/internal.h"
#include "alkes/core/TBitArray.h"

namespace alkes {

#define AL_DX_ST_CMN(name, type) AL_DX_RS_##name,

#define AL_DX_ST_B(name, type) AL_DX_ST_CMN(name, type)
#define AL_DX_ST_F(name, type)
#define AL_DX_ST(name, type)
enum RenderStateBool
{
#include "alkes/directx9/RenderState.inl"
    AL_DX_RS_RENDER_STATE_BOOL_MAX,
};

#undef AL_DX_ST_B
#undef AL_DX_ST_F
#undef AL_DX_ST
#define AL_DX_ST_B(name, type)
#define AL_DX_ST_F(name, type) AL_DX_ST_CMN(name, type)
#define AL_DX_ST(name, type)
enum RenderStateFloat
{
#include "alkes/directx9/RenderState.inl"
    AL_DX_RS_RENDER_STATE_FLOAT_MAX,
};

#undef AL_DX_ST_B
#undef AL_DX_ST_F
#undef AL_DX_ST
#define AL_DX_ST_B(name, type)
#define AL_DX_ST_F(name, type)
#define AL_DX_ST(name, type) AL_DX_ST_CMN(name, type)
enum RenderState
{
#include "alkes/directx9/RenderState.inl"
    AL_DX_RS_RENDER_STATE_MAX,
};
#undef AL_DX_ST_B
#undef AL_DX_ST_F
#undef AL_DX_ST

class AL_DX9_EXPORT DirectXState
{
public:
    DirectXState(IDirect3DDevice* device);
    ~DirectXState();

    void setRenderState(RenderStateBool state, bool value);
    void setRenderState(RenderStateFloat state, float value);
    void setRenderState(RenderState state, DWORD value);

    bool getRenderState(RenderStateBool state);
    float getRenderState(RenderStateFloat state);
    DWORD getRenderState(RenderState state);
    bool getRenderState(RenderStateBool state) const;
    float getRenderState(RenderStateFloat state) const;
    DWORD getRenderState(RenderState state) const;

private:
    IDirect3DDevice* device_;
    TBitArrays<
        uint32_t,
        EnoughSize<uint32_t,
            AL_DX_RS_RENDER_STATE_BOOL_MAX 
            + AL_DX_RS_RENDER_STATE_FLOAT_MAX
            + AL_DX_RS_RENDER_STATE_MAX>::count> loaded_flags_;
    TBitArrays<
        uint32_t,
        EnoughSize<uint32_t,
            AL_DX_RS_RENDER_STATE_BOOL_MAX>::count> bool_states_;
    float float_states_[AL_DX_RS_RENDER_STATE_FLOAT_MAX];
    DWORD dword_states_[AL_DX_RS_RENDER_STATE_MAX];
};

}

#endif
